I'm not sure if normal's the right word for it, but it's something for trainers to do.

[Hunk taps his chin thoughtfully. It's probably about as normal as anything else that goes on here, at least?]

Pretty much... you're out on the road a lot. [He's using the word road incredibly loosely here.] There's a lot of travel involved. Each major city or town has its own gym to challenge. If you win, you get a badge, some money and sometimes a TM or an HM that allows you to teach your pokemon a new move.